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  1. Replies
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    2421 Diaphragm Help

    Hello,
    I'm an idiot because I didn't care during renovation chamber in 2421 drivers. My screwdriver jumped and softly damaged aluminium diaphragm. The sound is clean, but I think about it. I have...
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    My measurements aftermarkets are similar to...

    My measurements aftermarkets are similar to those...
    http://www.audioheritage.org/vbulletin/showthread.php?31988-JBL-4425-Questions-JBL-2416H-vs-RAdian-1225-8&p=325397&viewfull=1#post325397
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    Thank you very much, I did not know this product....

    Thank you very much, I did not know this product. Do you have any measurements?

    Thanks

    Bohdan
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    14,612

    Hello, I bought an aftermarket diaphragm for...

    Hello,
    I bought an aftermarket diaphragm for JBL2425/2426 16ohm to driver JBL2421 of JBL4345 loudspeakers. I am disappointed, because a measurements THD are very bad compared to the original...
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    D16R2421 vs. D16R2425

    I did measure JBL2421B. The result was very good. The curve at the end of the spectrum is smooth. I assume, that titanium dome will not be as smooth. Break up can cause hard sound.

    Bohdan
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    D16R2425 missing thin spacers / metal strips under the three mounting screws

    Hello, help me please.
    I need to replace diaphragms D16R2421 in the speakers JBL2421B in my loudspeakers systems 4345 from JBL.



    I found an expensive genuine parts D16R2421 with an aluminum...
  7. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
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    217,035

    Hi I haven't users manuals for JBL 4345, where...

    Hi
    I haven't users manuals for JBL 4345, where was write about amplifier's connection. If connection of battery test and bass speaker go out, so black connector of loudspeaker = positive output of...
  8. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
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    217,035

    I sold JBL 4345 to a member of forum LH to...

    I sold JBL 4345 to a member of forum LH to Belgium last Friday. I made weaken position of the Slovak Republic :coolness: I think about it, I would like sell another one pair JBL 4345 from pictures...
  9. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Hi HP, all pairs have originals drivers....

    Hi HP,
    all pairs have originals drivers. Question mark in serial nomber it's mean, I haven't their now. He can't chek it yet, because my friend is very busy.

    Thank you.

    Bohdan
  10. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
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    217,035

    Hi Widget, thank you for contact to Zilch. I'm...

    Hi Widget,
    thank you for contact to Zilch. I'm busy with my family because my childrens very energetic.
  11. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Hi Rob, I demounted drivers last weekend,...

    Hi Rob,
    I demounted drivers last weekend, beacause foams are at home ;)
  12. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    These pairs wait for refoam in underground. Here...

    These pairs wait for refoam in underground. Here is see shopworn body - finishing. These pairs I will retain for my enjoyment ;)

    Bohdan
  13. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    My JBL 4345 of instalation at home. Here is see...

    My JBL 4345 of instalation at home. Here is see of childrens protection. This pair JBL 4345 I would like to sell.
    Bohdan
  14. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Rich, thank you, I'll try...

    Rich,
    thank you, I'll try...
  15. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Hi, What a finishing for wood is used for JBL...

    Hi,
    What a finishing for wood is used for JBL 4345? How do I clean and maintain?
  16. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Hi Rolf, Sorry my English vocabulary is rather...

    Hi Rolf,
    Sorry my English vocabulary is rather poor. I can't describe sound compared. Anyway I don't remember that some loudspeaker has award standing ovation. Except concert's ovations. But in this...
  17. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Hi David, Thank you for information about...

    Hi David,
    Thank you for information about lenses, the model 2328.
    Do you think, lenses could balance humps of frequency response in range 5kHz to 12kHz? This anomaly come with time delay of...
  18. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
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    217,035

    ... http://www.brnenskypodzim.ic.cz/program.html...

    ... http://www.brnenskypodzim.ic.cz/program.html ... (czech language) ...

    Where will buy lenses (2 to 10 units) for JBL 4345 in the Europe? ...with the exception of authorization services.
    ...
  19. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    I have found pictures from Hifi meeting “Brnensky...

    I have found pictures from Hifi meeting “Brnensky Podzim 2007” in the city Brno {Czech republic}. Here my JBL 4345 had standing ovation.

    http://taylor.sk/coques/Site/HIFI.html

    cca 50 Hifi...
  20. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Thank you everyone for welcome. Unfortunately...

    Thank you everyone for welcome.
    Unfortunately I haven’t pictures of original the JBL installations from Slovak National Radio. But I will try get them.
    Lenses are missing on all pairs. Is it a...
  21. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Hello Boputnam All pairs the JBL 4345 are...

    Hello Boputnam

    All pairs the JBL 4345 are complete originate - original speakers. Monitors are in good condition. One pair JBL 4345 I'm using at home in the Bratislava capital of Slovakia (60km...
  22. Thread: The JBL 4345 Club

    by JMD
    Replies
    333
    Views
    217,035

    Hello to everyone, :wave: The Slovakia in the...

    Hello to everyone, :wave:
    The Slovakia in the middle Europe has big concentration JBL 4345

    I've bought tree pairs of studio monitors from National Radio in Slovak Republic. I'd like to ask you to...
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